Enhance PWA support with new install prompt and configuration updates

- Added PWAInstallPrompt component to facilitate app installation beyond the "Add to Home Screen" option.
- Updated vite.config.ts to include display_override and id properties for improved PWA manifest.
- Modified nginx configuration to ensure proper serving of the manifest with application/manifest+json type for better installability on Android.

neode-ui/vite.config.ts

@@ -17,9 +17,11 @@ export default defineConfig({
         theme_color: '#000000',
         background_color: '#000000',
         display: 'standalone',
+        display_override: ['standalone', 'minimal-ui'],
         orientation: 'any',
         scope: '/',
         start_url: '/',
+        id: '/',
         categories: ['productivity', 'utilities'],
         prefer_related_applications: false,
         icons: [